Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 1558712621

Certificate GIA 1558712621

Diamond specifications and retailer prices

From £1,876 GBP
A$3,868 AUD
As of October 31, 2026
15 retailers carry this diamond
Most expensive: £3,273 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558712621. Listed at 15 retailers as of October 31, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.30
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle37°
Pavilion angle36.1°
OriginNatural
Grading LabGIA
CertificateGIA 1558712621
Dimensions6.25 × 6.10 × 4.15 mm
L/W Ratio1.02
Girdle conditionFaceted
Top View
6.25 mm6.10 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1558712621
Side View
Table 64.0%Crown 37°Girdle: MED-THKPavilion 36.1°Culet: NoneDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £3,273 GBP|Low: £1,342 GBP|High: £3,305 GBP|Avg: £1,960 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 21, 2026
Retailer 16£1,366 GBP
Retailer 12£1,409 GBP
Retailer 8£1,696 GBP
Retailer 4£1,715 GBP
Retailer 13£1,766 GBP
Retailer 14£1,776 GBP
Retailer 7£1,784 GBP
Retailer 10£1,864 GBP
Retailer 6£1,923 GBP
Retailer 11£1,947 GBP
Retailer 3£2,014 GBP
Retailer 5£2,023 GBP
Retailer 9£2,087 GBP
Retailer 2£2,134 GBP
Retailer 18£2,255 GBP
Retailer 17£2,273 GBP
Retailer 15£2,303 GBP
MOH London£3,273 GBP

21 data points across 18 retailers

15 retailers

Retailer 1
-
£1,366 GBP
HK$14,300 HKD
Price last confirmed 13 days ago
Retailer 2
-
£1,409 GBP
₹179,792 INR
View
Price last confirmed 13 days ago
Retailer 3
-
£1,696 GBP
$2,272 USD
View
Price last confirmed 18 days ago
Retailer 4
-
£1,766 GBP
$2,366 USD
View
Price last confirmed 12 days ago
Retailer 5
-
£1,776 GBP
$2,380 USD
View
Price last confirmed 12 days ago
Retailer 6
-
£1,784 GBP
$2,390 USD
View
Price last confirmed 11 days ago
A
Retailer 7
-
£1,876 GBP
A$3,868 AUD
View
Retailer 8
-
£1,923 GBP
SGD 3,481 SGD
View
Price last confirmed 12 days ago
Retailer 9
-
£1,947 GBP
View
Price last confirmed 12 days ago
Retailer 10
-
£2,006 GBP
$2,688 USD
View
Price last confirmed 12 days ago
Retailer 11
-
£2,014 GBP
$2,698 USD
View
Price last confirmed 13 days ago
Retailer 12
-
£2,023 GBP
$2,710 USD
View
Price last confirmed 11 days ago
Retailer 13
-
£2,087 GBP
A$4,303 AUD
View
Price last confirmed 32 days ago
Retailer 14
-
£2,255 GBP
ZAR 48,821 ZAR
View
Price last confirmed 16 days ago
Most Expensive
MOH London
0FE1DCF9E · Oct 21
£3,273 GBP
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from £1,876 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.30ct Cushion
£1,876 GBP